Sunny Cove State Marine Park is located fourteen miles south of Seward at the south end of Fox Island (Renard Island) in Resurrection Bay. The cove faces west, providing a good view of Callisto Head, Bear Glacier and Kenai Fjords National Park. The park provides a good camping beach along the south shore of the cove with fine to medium beach gravel. The park's 960 acres encompasses the entire south portion of Fox Island, including an unnamed peak of 1,362 feet. With the exception of the south beach of Sunny Cove, vertical rock cliffs characterize the park's coastline.

Sunny Cove SMP is popular as an anchorage for sailboats and power boats with some beach camping also occurring.

Excellent wildlife viewing exists around the vertical cliffs, especially those along the eastern shore. Numerous seabird species and marine mammals can be easily viewed from skiff or kayak. Fresh water is available seasonally in the park; during wet weather, water is generally available from small waterfalls south along the shore from the cove, but these can only be reached at low tide.